Initial commit: Werkzeuge-Sammlung

Enthält:
- rdp_client.py: RDP Client mit GUI und Monitor-Auswahl
- rdp.sh: Bash-basierter RDP Client
- teamleader_test/: Network Scanner Fullstack-App
- teamleader_test2/: Network Mapper CLI

Subdirectories mit eigenem Repo wurden ausgeschlossen.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

teamleader_test2/ARCHITECTURE.md

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+# LAN Graph Architecture
+
+## Overview
+- **Scanner**: Discovers live IPv4 hosts in the local subnet by pinging each address in the primary CIDR range discovered from `ip -4 addr`. Reverse DNS lookups enrich each host node. When SSH is reachable using key-based authentication, the scanner also runs `ip neigh show` remotely to learn neighbor MAC/IP and infers host-to-host connections.
+- **Data Model**: `HostNode` stores IP, DNS name, reachability, last-seen timestamp, and optionally gathered SSH services; `ConnectionEdge` links nodes with a typed relation (e.g., `gateway`, `neighbor`, `ssh`) to drive the visualization. `ScanResult` aggregates nodes, edges, CIDR, gateway, and timestamp.
+- **Web Visualization**: FastAPI serves the API plus a D3.js front-end. `/api/scan` triggers a fresh scan (or accepts `cidr` override) and returns the JSON graph. Static assets live under `frontend/` and render the nodes/edges with `d3-force` to deliver a Visio-like topology.
+- **CLI/Server**: Typing `lan-graph scan` runs a JSON scan, and `lan-graph serve` launches FastAPI (uvicorn) to host the visual overview and API.
+
+## Security & SSH
+- Scanner defaults to `ssh -o BatchMode=yes -o ConnectTimeout=5` to honor the user's request for key-based auth and to avoid prompting for passwords.
+- SSH user/key can come from the calling environment via `SSH_USER` and `SSH_KEY_PATH` or CLI flags so credentials are not hard-coded.
+
+## Extensibility Points
+- Additional probing (SMB, HTTP) can be added via `Scanner.probe_tcp_port` helpers.
+- Visualization can be enhanced by swapping the D3 force layout for hierarchical or layered diagrams.